Vehicle liftgate



FIG. 1 is a perspective view of the vehicle liftgate;

FIG. 2 is a front view thereof;

FIG. 3 is a left side elevation view thereof (where the right side elevation view of the vehicle liftgate is omitted since the right side elevation view is substantially a mirror image of the left side elevation view); and,

FIG. 4 is a top view thereof.

The broken lines shown in the drawings depict portions of the vehicle liftgate that form no part of the claimed design. 

CLAIM The ornamental design for a vehicle liftgate, as shown and described. 